#66BBEC#66BBEC

#66BBEC is a light, moderate cyan. Relative luminance 0.444; OKLCH L 75.8% C 0.109 H 235.9°. Best body text is #000000 at 9.88:1 contrast (WCAG AA passes).

Color values

HEX#66BBEC
RGBrgb(102, 187, 236)
HSLhsl(202, 78%, 66%)
HSVhsv(202, 57%, 93%)
CMYKcmyk(56.8%, 20.8%, 0%, 7.5%)
CIE-LABlab(72.51, -11.92, -32.20)
CIE-LCHlch(72.51, 34.33, 249.69°)
OKLaboklab(75.78% -0.0608 -0.0899)
OKLCHoklch(75.78% 0.109 235.9)
XYZxyz(38.3845, 44.4181, 85.8913)
Luminance0.4442 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66BBEC #EC9766
analogous
#66ECDA #66BBEC #6678EC
triadic
#66BBEC #EC66BB #BBEC66
tetradic
#66BBEC #DA66EC #EC9766 #78EC66
square
#66BBEC #DA66EC #EC9766 #78EC66
split-complementary
#66BBEC #EC6678 #ECDA66
monochromatic
#1882C0 #30A3E5 #66BBEC #9CD3F3 #D3EBFA

Accessibility & contrast

On white

2.12
#66BBEC on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.88
#66BBEC on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BBEC
9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66BBEC#FFFFFF#000000##000000
##66BBEC1.002.129.889.88
#FFFFFF2.121.0021.0021.00
#0000009.8821.001.001.00
##0000009.8821.001.001.00

Color blindness preview

Protanopia (red-blind)
#A4BAEE
Deuteranopia (green-blind)
#91ACEB
Tritanopia (blue-blind)
#00C8CB
Achromatopsia (no color)
#B2B2B2

Design tokens & code

CSS
--color: #66bbec;
/* rgb */ color: rgb(102, 187, 236);
/* oklch */ color: oklch(75.8% 0.109 235.9);
Tailwind
colors: {
  custom: {
    50: '#9bcff2',
    500: '#66bbec',
    950: '#000000',
  },
}
SCSS
$custom: #66bbec;
$custom-light: #9bcff2;
$custom-dark: #000000;
JSON
{
  "hex": "#66bbec",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 236
  },
  "hsl": {
    "h": 201.94,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.75782,
    "c": 0.10859,
    "h": 235.9
  },
  "luminance": 0.44422
}

Semantic roles & 50–950 ramp

primary
#66BBEC
secondary
#EDD1C1
accent
#570BDA
background
#FAFCFE
surface
#F4F9FD
border
#CED2D5
text
#0F1317
muted
#7F8285

Preview Lab

Preview with #66BBEC

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#66BBEC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva